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Tuesday, September 07, 2010

Weekly Propagation Forecast Bulletins

Product: Weekly Highlights and Forecasts
:Issued: 2010 Sep 07 2251 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC web contact: www.swpc.noaa.gov/weekly.html
#
# Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic Activity
30 August - 05 September 2010

Solar activity was very low. Several B-class flares were observed during the period. The majority of the flares originated from Region 1105 (N19, L=048, class/area Dri/130 on 05 September). A filament lifted off the northwest quadrant observed on SDO AIA 193 at 04/1430Z. An associated CME was observed on SOHO Lasco C3 imagery, with an estimated speed of 368 km/s.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at high levels during 30 August - 02 September. Low to moderate levels occurred on 03-04 September. High levels returned late on 05 September.

Geomagnetic field activity was predominantly quiet during the period. Isolated unsettled levels occurred during 02-03 September. Solar wind observations from the ACE spacecraft showed an enhanced interplanetary field (IMF) intensity (peak 9 nT at 05/2305Z), combined with intermittent periods of southward IMF BZ (maximum deflection of -8 nT at 05/2104Z), with a slight increase in velocities (peak 400 km/sec).

Forecast of Solar and Geomagnetic Activity
08 September - 04 October 2010

Solar activity is expected to be predominantly very low. Low levels are possible from 23 September to the end of the period due to the return of old Region 1105 (N19, L=048).

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is expected to be at high levels from 08-12 September. Low to moderate levels are expected for 13-20 September. High levels are expected to return for 21-29 September. Low to moderate levels are expected for the remainder of the period.

Geomagnetic field activity is expected to be predominantly quiet for 08-18 September. Quiet to unsettled levels, with isolated active periods, are expected for 19-21 September due to a recurrent CH HSS. Quiet levels should prevail for 22 September through the remainder
of the forecast period.


Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2010 Sep 07 2251 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC web contact: www.swpc.noaa.gov/wwire.html
#
# 27-day Space Weather Outlook Table
# Issued 2010 Sep 07
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2010 Sep 08 79 5 2
2010 Sep 09 78 8 3
2010 Sep 10 78 5 2
2010 Sep 11 80 5 2
2010 Sep 12 81 5 2
2010 Sep 13 81 5 2
2010 Sep 14 80 5 2
2010 Sep 15 78 5 2
2010 Sep 16 78 5 2
2010 Sep 17 76 5 2
2010 Sep 18 76 5 2
2010 Sep 19 75 8 3
2010 Sep 20 75 12 4
2010 Sep 21 75 8 3
2010 Sep 22 74 5 2
2010 Sep 23 74 5 2
2010 Sep 24 74 5 2
2010 Sep 25 74 5 2
2010 Sep 26 74 5 2
2010 Sep 27 74 5 2
2010 Sep 28 78 5 2
2010 Sep 29 78 5 2
2010 Sep 30 78 5 2
2010 Oct 01 78 5 2
2010 Oct 02 80 5 2
2010 Oct 03 80 5 2
2010 Oct 04 79 5 2
(NOAA)